I develop account recievedvable program  on access. So I get new data to 

subtract  old value in one flied. How I write program to subtract data that 

customer.Customerid=invoice.customerid

Thanks

Chuttawan,



Your request is not clear.  What data in the Customer table do you want

to subtract from what data in the Invoice table?



John Ruff - The Eternal Optimist :-)







-----Original Message-----

From: chuttawan [mailto:chuttawan@h...] 

Sent: Wednesday, November 21, 2001 6:03 AM

To: Access

Subject: [access] How subtract value on one field and update last value





I develop account recievedvable program  on access. So I get new data to



subtract  old value in one flied. How I write program to subtract data

that 

customer.Customerid=invoice.customerid

Thanks

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